Health consultant is to comprehensively monitor, analyze and evaluate the health risks or risk factors affecting health faced by patients, sub-healthy people, health groups, family members or specific social groups, formulate health plans, carry out health education, enhance health awareness, and conduct regular health guidance and health promotion to standardize their health behaviors and prevent and reduce health risks. Health service workers who can respond quickly when individuals, groups or specific social groups are threatened by health risks, and when health risks have occurred or are being infringed by health risks, and take targeted intervention steps to successfully solve or effectively alleviate health problems.